| 7. | Inventories |
| As at December 31 | 2017 | 2016 | ||||||
| AGGRASTAT®: Finished product available-for-sale | $ | 2,058,776 | $ | 3,418,652 | ||||
| AGGRASTAT®: Unfinished product and packaging materials | 1,016,230 | 697,767 | ||||||
| API: Finished product available-for-sale | - | 4,693,448 | ||||||
| API: Work-in-progress | - | 1,914,910 | ||||||
| API: Raw material and packaging material | - | 1,451,867 | ||||||
| $ | 3,075,006 | $ | 12,176,644 | |||||
Inventories expensed as part of cost of goods sold during the year ended December 31, 2017 amounted to $3,079,397 (2016 – $2,482,986; 2015 – $1,563,344). During the year ended December 31, 2017, the Company wrote-off inventory of $385,289 (2016 – recovery of $108,817; 2015 – $40,920) that had expired or was otherwise unusable.